While at a clinic receiving treatment for anorexia, Zoe is instructed to write letters. Through letters, she tells her mother and brother about the clinic; the doctors, the food, her struggle to get better. But she tells her best friend Elise about the strange goings on around her, the shady relationships, the dark mysteries. When the lights go out, the place turns into someplace else.

While her mother and brother write back, their letters filled with cheerful encouragement—Zoe’s letters to Elise remain unanswered. As Zoe struggles to understand why her best friend would cut her off, she must unravel the secrets that surround her in the clinic.

When Micah disappears from home, his sister Rachel decides to secretly take matters into her own hands. Armed with Micah's best friend Tyler, she travels from the hazy, lazy suburbs of Southern California to the seedy side of San Diego's beach communities following the clues that Micah left behind. As each lead arrives at a dead end, she is left to piece together the puzzle that is her brother's life. And the sketchy characters Rachel and Tyler encounter make Rachel wonder if she can reach Micah before it’s too late.